Police in the US are searching for a suspect who they said posted footage on Facebook of himself killing a man. In a separate video he claimed to have killed more than a dozen others.

The Cleveland division of police said on Sunday it was looking for Steve Stephens in connection with the shooting of 74-year-old Robert Godwin Sr in the city’s Glenville neighbourhood. Police said Stephens was armed and dangerous.

“Suspect did broadcast the killing on Facebook Live and has claimed to have committed multiple other homicides which are yet to be verified,” the police said in a statement, referring to Facebook’s live-streaming video service.

Facebook later clarified that Stephens had posted a video, rather than broadcast live, although he had appeared on Facebook Live at one point in the day.

The video of the attack was on Facebook for about three hours before being removed.

Officers believe Stephens, who worked for a behavioural health agency, might be driving a white or cream-coloured sports utility vehicle.

In January, four people in Chicago were accused of attacking an 18-year-old disabled man and broadcasting the attack on Facebook Live while shouting “fuck Donald Trump” and “fuck white people”.

A month later, the accused pleaded not guilty to assaulting the victim.